JPS5494756A - Method of controlling aerobically denitrifying process - Google Patents

Method of controlling aerobically denitrifying process

Info

Publication number
JPS5494756A
JPS5494756A JP252178A JP252178A JPS5494756A JP S5494756 A JPS5494756 A JP S5494756A JP 252178 A JP252178 A JP 252178A JP 252178 A JP252178 A JP 252178A JP S5494756 A JPS5494756 A JP S5494756A
Authority
JP
Japan
Prior art keywords
tank
aerobically
night soil
orp
denitrifying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP252178A
Other languages
Japanese (ja)
Inventor
Kiyomi Murata
Yutaka Yamada
Shigeki Kimura
Mitsuru Nakayama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP252178A priority Critical patent/JPS5494756A/en
Publication of JPS5494756A publication Critical patent/JPS5494756A/en
Pending legal-status Critical Current

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  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

PURPOSE: To easily control the denitrifying process of night soil aerobically by utilizing the fact that an ORP is in the range of -100 to -400mV widely when a DO varies in narrow of 0 to 1ppm in the aerobically denitrifying process of the night soil.
CONSTITUTION: Night soil is introduced from a night soil supply tube 4 into an aerobically digesting tank 1 and aerated by an aerobic unit 6 to be activated by returning sludge returned from a settling basin 3. Then, the mixture liquid after the digestion in a digesting tank 2 is returned to the tank 1. The digested mixture liquid is denitrified by the activated sludge bacteria and denitrifying bacteria in the tank 1. That is, ammonia nitrogen in the soil becomes nitrogen oxide by means of the digestion, and the nitrogen oxide becomes inactive nitrogen in the tank 1. An ORP detector 9 is inserted into the tank 1 at that time. The detected result of the detector 9 is applied to a controller 10 to thereby control an air compressor 5 of the unit 6 so as to control the ORP in the tank 1.
COPYRIGHT: (C)1979,JPO&Japio
JP252178A 1978-01-10 1978-01-10 Method of controlling aerobically denitrifying process Pending JPS5494756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP252178A JPS5494756A (en) 1978-01-10 1978-01-10 Method of controlling aerobically denitrifying process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP252178A JPS5494756A (en) 1978-01-10 1978-01-10 Method of controlling aerobically denitrifying process

Publications (1)

Publication Number Publication Date
JPS5494756A true JPS5494756A (en) 1979-07-26

Family

ID=11531670

Family Applications (1)

Application Number Title Priority Date Filing Date
JP252178A Pending JPS5494756A (en) 1978-01-10 1978-01-10 Method of controlling aerobically denitrifying process

Country Status (1)

Country Link
JP (1) JPS5494756A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57113895A (en) * 1981-01-07 1982-07-15 Agency Of Ind Science & Technol Denitrification treatment of water
JPS62201698A (en) * 1986-02-28 1987-09-05 Ebara Infilco Co Ltd Treatment of organic waste liquid

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5120072A (en) * 1974-08-12 1976-02-17 Mitsubishi Heavy Ind Ltd CHITSUSOSANKABUTSUOGANJUSURU EKITAINO DATSUCHITSUSOSHORIHOHO OYOBI SONOSOCHI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5120072A (en) * 1974-08-12 1976-02-17 Mitsubishi Heavy Ind Ltd CHITSUSOSANKABUTSUOGANJUSURU EKITAINO DATSUCHITSUSOSHORIHOHO OYOBI SONOSOCHI

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57113895A (en) * 1981-01-07 1982-07-15 Agency Of Ind Science & Technol Denitrification treatment of water
JPS62201698A (en) * 1986-02-28 1987-09-05 Ebara Infilco Co Ltd Treatment of organic waste liquid
JPH0312956B2 (en) * 1986-02-28 1991-02-21 Ebara Infuiruko Kk

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